Annealing equipment for nodular iron casting

Abstract

The utility model discloses spheroidal graphite iron casting annealing equipment, which belongs to the field of spheroidal graphite iron casting production and comprises a frame. A conveying belt mechanism and a plurality of lifting assemblies are arranged on the rack, and a fan and a water cooling pump machine are arranged on each lifting assembly; the fan is communicated with an air pipe, and the water cooling pump is communicated with an atomizing pipe; an annealing plate is obliquely arranged on one side of the rack; and a water cooling assembly is arranged below the annealing plate. According to the spheroidal graphite iron casting annealing equipment disclosed by the utility model, under the driving of the conveying belt mechanism, through the matching of the fan and the water cooling pump machine, the rapid cooling can be realized, and the annealing time is shortened; the ductile iron casting on the annealing plate is subjected to third-time cooling treatment through the annealing plate and the gutter channel, compared with annealing treatment in a citation file, through three-time annealing treatment, different cooling speeds and temperature gradients can be formed in different areas, meanwhile, rapid cooling can be achieved, the annealing time is shortened, and the production efficiency is improved. The production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of ductile iron casting production, and in particular relates to ductile iron casting annealing equipment. Background Art

[0002] Annealing of ductile iron castings is a heat treatment process that aims to improve the structure and properties of ductile iron through the process of heating and cooling; ductile iron is a casting material with high strength, toughness and wear resistance, which is characterized by the addition of ductile graphite forming elements and alloying elements during the casting process. Annealing is a process of heating ductile iron castings to a certain temperature and then cooling them to room temperature within an appropriate time. The purpose of annealing is to eliminate the internal stress of ductile iron castings, improve their structure and enhance their mechanical properties.

[0003] According to a Chinese patent publication numbered CN212770863U, a cooling device for an online continuous annealing furnace for ductile iron pipes is disclosed; the outlet pipe end of the cooling tower described in the cited document is fixedly connected to one end of the second water pump through a fourth water pipe. The utility model achieves recycling and reuse of used water by adding a recovery mechanism to the structure of the cooling device, thereby avoiding waste of resources;

[0004] Although the above cited document utilizes a water cooling tower to continuously anneal ductile iron parts during annealing operations on ductile iron parts, in actual use, the document still has certain usage defects, that is, the document only utilizes water cooling annealing, and the cooling rate of water cooling annealing is slow, which can easily lead to uneven structure of ductile iron parts, and further lead to differences in hardness, strength and toughness on the surface and inside of the parts. Therefore, a ductile iron part annealing equipment is provided to solve the above problems. Utility Model Content

[0005] In view of one or more of the above defects or improvement needs of the prior art, the utility model provides a ductile iron casting annealing equipment, which has the advantages of high annealing efficiency, diverse annealing methods and better annealing effect.

[0006] To achieve the above-mentioned purpose, the utility model provides a ductile iron casting annealing device, comprising a frame;

[0007] The frame is provided with a conveyor belt mechanism and a plurality of lifting components, and the plurality of lifting components are arranged in groups of two and are arranged above the conveyor belt mechanism; fans and water-cooling pumps are respectively arranged on the two groups of lifting components;

[0008] The fan is connected to an air duct, and the water-cooling pump is connected to an atomizing pipe;

[0009] An annealing plate is obliquely arranged on one side of the frame; the annealing plate is a rectangular hollow plate and its inner wall is curved to open a water flow groove; a water cooling component is arranged below the annealing plate;

[0010] Each group of the lifting components includes two lifting seats arranged on the frame, the lifting seats are provided with a slide groove, a slider seat is slidably arranged in the slide groove, an adjusting screw rod is threadedly connected to the lifting seat, the adjusting screw rod is meshed with the slider seat, and a mounting plate is arranged between the two slider seats.

[0011] As a further improvement of the present invention, the water cooling assembly includes a water tank arranged below the annealing plate, a water cooling fan is mounted on the side of the water tank, and two water inlet valves are arranged on the outside of the water tank.

[0012] As a further improvement of the utility model, a water pump is installed on the upper end surface of the water tank, and an input end of the water pump is connected to a water pumping pipe, which extends into the water tank.

[0013] As a further improvement of the utility model, the output end of the water pump is connected to a water outlet pipe, and the water tank is connected to a return pipe.

[0014] As a further improvement of the utility model, holes are provided at the tail end and the front end of the water flow trough, the return pipe is connected to the tail end hole on the water flow trough, and the outlet pipe is connected to the front end hole of the water flow trough.

[0015] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0016] The utility model of annealing equipment for ductile iron castings can perform two annealing treatments on ductile iron castings in actual use through the fan and the water cooling pump. The user adjusts the height of the fan and the water cooling pump according to the size of the ductile iron casting. When the ductile iron casting is conveyed to the bottom of the water cooling pump via the conveyor belt mechanism, the water cooling pump can be used to perform preliminary atomization water cooling annealing on the ductile iron casting. Subsequently, the conveyor belt mechanism is driven to convey the workpiece to the bottom of the fan for a second air cooling annealing treatment. The cooperation between the two can achieve rapid cooling, reduce annealing time, and improve production efficiency.

[0017] The ductile iron casting annealing equipment of the utility model cooperates with the provided lifting assembly in actual use, so that the fan and water-cooling pump that can be raised and lowered can accurately control the temperature during the annealing process. By adjusting the operating positions of the fan and the water-cooling pump, the temperature of the ductile iron casting can be accurately controlled to ensure that the annealing temperature meets the requirements.

[0018] The ductile iron casting annealing equipment of the utility model, after the ductile iron casting is annealed twice by the fan and the water cooling pump, the workpiece can be conveyed to the annealing plate again by the conveyor belt mechanism. At this time, the user uses the set water cooling component to make the water source in the water tank be conveyed to the water flow trough through the water outlet pipe, and the annealing plate is cooled. At this time, the ductile iron casting on the annealing plate can be cooled for the third time by the annealing plate and the water flow trough. Compared with the annealing treatment in the cited document, the three annealing treatments of the present application can not only form different cooling speeds and temperature gradients in different areas, but also realize rapid cooling, reduce annealing time, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall installation structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the overall installation structure of the water cooling component of the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of the annealing plate and the water flow trough of the utility model;

[0022] Figure 4 It is a schematic diagram of the installation structure between the lifting component and the water-cooling pump and fan of the utility model.

[0023] In all the drawings, the same figure numbers represent the same technical features, specifically: 1. frame; 2. conveyor belt mechanism; 3. lifting assembly; 31. lifting seat; 32. slider seat; 33. adjusting screw; 34. mounting plate; 4. fan; 41. air duct; 5. water-cooling pump; 51. atomizing pipe; 6. annealing plate; 61. water flow trough; 7. water-cooling assembly; 71. water tank; 72. water-cooling fan; 73. water pump; 74. water suction pipe; 75. water outlet pipe; 76. reflux pipe; 77. water inlet valve. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example

[0026] Depend on Figure 1-4 Provided is a ductile iron casting annealing device, comprising a frame 1;

[0027] A conveyor belt mechanism 2 and a plurality of lifting components 3 are arranged on the frame 1. The plurality of lifting components 3 are arranged in groups of two and are arranged above the conveyor belt mechanism 2. A fan 4 and a water cooling pump 5 are respectively arranged on the two groups of lifting components 3.

[0028] The fan 4 is connected to an air duct 41, and the water cooling pump 5 is connected to an atomizing pipe 51;

[0029] An annealing plate 6 is obliquely arranged on one side of the frame 1 ; the annealing plate 6 is a rectangular hollow plate and its inner wall is curved to form a water flow channel 61 ; a water cooling assembly 7 is arranged below the annealing plate 6 .

[0030] In this embodiment, after the ductile iron castings are annealed twice by the fan 4 and the water-cooling pump 5, the workpieces can be conveyed to the annealing plate 6 again through the conveyor belt mechanism 2. At this time, the user sets a water cooling component 7 so that the water source in the water cooling component 7 can be conveyed to the water flow trough 61, and the annealing plate 6 is cooled. At this time, the ductile iron castings on the annealing plate 6 can be cooled for the third time through the annealing plate 6 and the water flow trough 61. Compared with the annealing treatment in the cited document, the three annealing treatments of this application can not only form different cooling rates and temperature gradients in different regions, but also achieve rapid cooling, reduce annealing time, and improve production efficiency.

[0031] Specifically, refer to Figure 1-2 The water cooling assembly 7 includes a water tank 71 disposed below the annealing plate 6 , a water cooling fan 72 is mounted on the side of the water tank 71 , and two water inlet valves 77 are disposed on the outer side of the water tank 71 .

[0032] In this embodiment, in actual use, the water inlet valve 77 can be used to inject cooling water into the water tank 71, thereby achieving cooling treatment of the annealing plate 6. The user can connect the power supply to the water cooling fan 72, so that the water cooling fan 72 can ensure that the water source in the water tank 71 is always in a low temperature state.

[0033] Specifically, refer to Figure 1-2 A water pump 73 is mounted on the upper end surface of the water tank 71 . An input end of the water pump 73 is connected to a water pumping pipe 74 , which extends into the water tank 71 .

[0034] In this embodiment, the user can connect the water pump 73 to a power source to drive the water pump 73. At this time, the water pump 73 is connected to the water pump 73 through the provided water pumping pipe 74, so that the water pump 73 can draw the cooling water in the water tank 71 to the water outlet pipe 75 for discharge, and then the cooling water enters the annealing plate 6 to achieve cooling treatment of the annealing plate 6.

[0035] Specifically, refer to Figure 1-2The output end of the water pump 73 is connected to a water outlet pipe 75 , and the water tank 71 is connected to a return pipe 76 .

[0036] In this embodiment, the water outlet pipe 75 is provided to discharge the cooling water drawn from the water tank 71 and circulate through the water flow trough 61. After the cooling water passes through the water flow trough 61 for one cycle, it can flow back to the water tank 71 through the reflux pipe 76 to realize the water recovery process.

[0037] Specifically, refer to Figure 3 The tail end and the front end of the water flow trough 61 are both provided with holes, the return pipe 76 is connected to the tail end hole of the water flow trough 61, and the outlet pipe 75 is connected to the front end hole of the water flow trough 61.

[0038] In this embodiment, through the connection between the water trough 61 and the water outlet pipe 75, the water source in the water tank 71 can be transmitted to the water trough 61 through the water outlet pipe 75, and the annealing plate 6 is cooled; at the same time, the holes on the tail end of the water trough 61 can allow the cooling water that circulates a circle to return to the water tank 71 again through the return pipe 76, and the ductile iron castings on the annealing plate 6 can be cooled for the third time through the annealing plate 6 and the water trough 61.

[0039] Specifically, refer to Figure 1 , Figure 4 Each lifting assembly 3 includes two lifting seats 31 arranged on the frame 1. The lifting seats 31 are provided with a slide groove, and a slider seat 32 is slidably provided in the slide groove. An adjusting screw rod 33 is threadedly connected to the lifting seats 31, and the adjusting screw rod 33 is meshed with the slider seat 32. A mounting plate 34 is provided between the two slider seats 32.

[0040] In this embodiment, in actual use, the user rotates the adjusting screw rod 33, and through the meshing connection between the adjusting screw rod 33 and the slider seat 32, the slider seat 32 is limited by the slide groove on the lifting seat 31, so that the slider seat 32 can drive the mounting plate 34 to move linearly up and down along the slide groove of the lifting seat 31. At this time, the user adjusts the position of the slider seat 32 on the two sets of lifting components 3 in turn, so as to adjust the position of the fan 4 and the water-cooling pump 5. By adjusting the position of the fan 4 and the water-cooling pump 5, different cooling speeds and temperature gradients can be formed in different areas for workpieces of different sizes, so that the cooling medium can evenly cover the surface of the entire ductile iron casting, avoiding uneven annealing caused by local cooling that is too fast or too slow.

[0041] The utility model of ductile iron casting annealing equipment:

[0042] Step 1: When the operator is annealing the ductile iron casting, the workpiece to be processed is placed on the conveyor mechanism 2, and the workpiece is conveyed by the conveyor mechanism 2. Then, the lifting assembly 3 is rotated and adjusted, and the screw rod 33 is rotated and adjusted. The meshing connection between the screw rod 33 and the slider seat 32 is adjusted, and the slider seat 32 is limited by the slide groove on the lifting seat 31, so that the slider seat 32 can drive the mounting plate 34 to move linearly along the slide groove of the lifting seat 31. At this time, the user adjusts the position of the slider seat 32 on the two sets of lifting assemblies 3 in turn, so as to realize the position adjustment of the fan 4 and the water-cooling pump 5;

[0043] Step 2: The user adjusts the height of the fan 4 and the water-cooling pump 5 according to the size of the ductile iron casting workpiece, and then connects the fan 4 and the water-cooling pump 5 to a power source and connects the water-cooling pump 5 to a water source, so that the water-cooling pump 5 can be used to perform preliminary atomization water-cooling annealing on the ductile iron casting first, and then, driven by the conveyor belt mechanism 2, the workpiece is conveyed to the bottom of the fan 4 for a second air-cooling annealing treatment;

[0044] Step 3: After the ductile iron parts are annealed twice by the fan 4 and the water-cooling pump 5, the workpieces can be conveyed to the annealing plate 6 again through the conveyor belt mechanism 2. At this time, the user injects water into the water tank 71 and drives the water pump 73 to operate. At this time, the two ends of the water pump 74 and the water outlet pipe 75 are connected, so that the water in the water tank 71 can be conveyed to the water flow trough 61 through the water outlet pipe 75, and the annealing plate 6 is cooled. At this time, the ductile iron parts on the annealing plate 6 can be cooled for the third time through the annealing plate 6 and the water flow trough 61.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ductile iron casting annealing equipment, characterized in that: comprising a frame (1); The frame (1) is provided with a conveyor belt mechanism (2) and a plurality of lifting components (3), and the plurality of lifting components (3) are arranged in groups of two and are arranged above the conveyor belt mechanism (2); a fan (4) and a water-cooling pump (5) are respectively arranged on the two groups of lifting components (3); The fan (4) is connected to an air duct (41), and the water-cooling pump (5) is connected to an atomizing pipe (51); An annealing plate (6) is obliquely arranged on one side of the frame (1); the annealing plate (6) is a rectangular hollow plate and its inner wall is curved to form a water flow channel (61); a water cooling component (7) is arranged below the annealing plate (6); Each group of the lifting components (3) comprises two lifting seats (31) arranged on the frame (1), the lifting seats (31) are provided with a slide groove, a slider seat (32) is slidably arranged in the slide groove, an adjusting screw rod (33) is threadedly connected to the lifting seat (31), the adjusting screw rod (33) is meshed with the slider seat (32), and a mounting plate (34) is arranged between the two slider seats (32).

2. The annealing equipment for ductile iron castings according to claim 1, characterized in that: The water cooling assembly (7) comprises a water tank (71) arranged below the annealing plate (6), a water cooling fan (72) is mounted on the side of the water tank (71), and two water inlet valves (77) are arranged on the outside of the water tank (71).

3. The annealing equipment for ductile iron castings according to claim 2, characterized in that: A water pump (73) is mounted on the upper end surface of the water tank (71); an input end of the water pump (73) is connected to a water pumping pipe (74), and the water pumping pipe (74) extends into the water tank (71).

4. The annealing equipment for ductile iron castings according to claim 3 is characterized in that: The output end of the water pump (73) is connected to a water outlet pipe (75), and the water tank (71) is connected to a return pipe (76).

5. The annealing equipment for ductile iron castings according to claim 4, characterized in that: The tail end and the front end of the water flow trough (61) are both provided with holes, the return pipe (76) is connected to the tail end hole of the water flow trough (61), and the outlet pipe (75) is connected to the front end hole of the water flow trough (61).

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